Control rod servicing apparatus and method
    1.
    发明授权
    Control rod servicing apparatus and method 失效
    控制杆维修装置及方法

    公开(公告)号:US5243631A

    公开(公告)日:1993-09-07

    申请号:US932175

    申请日:1992-08-19

    IPC分类号: G21C19/02

    摘要: An apparatus and method are provided for servicing an irradiated nuclear control rod underwater in a reactor building servicing pool. A turntable containing a plurality of spaced apart tools is positioned adjacent to the control rod. A first tool aligns the turntable relative to the radioactive roller mounted to the control rod by a radioactive pin therethrough. The turntable is indexable to position a second tool adjacent to the radioactive roller and pin, with the second tool being effective for freeing the radioactive pin from the control rod. The turntable is indexable for positioning a third tool adjacent to the radioactive roller and pin for removing the radioactive pin and the roller from the control rod. In further embodiments of the invention the turntable is further indexable for positioning a fourth tool adjacent to the control rod for reaming the pin aperture through which the radioactive pin was mounted. The turntable further includes a fifth tool which is indexable into position adjacent to the control rod for inserting a replacement roller and replacement pin therein. The replacement pin is secured to the control rod by a sixth tool supported on the turntable which is also indexable into position.

    Control rod housing alignment and repair apparatus
    2.
    发明授权
    Control rod housing alignment and repair apparatus 失效
    控制杆外壳对位和修理装置

    公开(公告)号:US5059384A

    公开(公告)日:1991-10-22

    申请号:US617828

    申请日:1990-11-26

    IPC分类号: G21C7/12 G21C19/02

    摘要: In a boiling water nuclear reactor having its core, fuel support casting, and control rod guide tubes removed to expose the core plate, an apparatus and method for the submerged welding repair and replacement of the control rod drive housing at the bottom extremity of the reactor vessel is disclosed. The apparatus registers to a hole in the core plate and its corresponding guide pin. A mating fixture on the depending extremity of the shaft of the apparatus precisely fits and mates to the top of the control rod drive housing. The alignment device includes cross electronic levels sealed for submersion which levels remotely transfer through attached wiring the precise angularity between the top of the control rod drive housing on one hand and the corresponding and overlying hole in the core plate on the other hand. For the welding repair process herein, a welding cylinder apparatus fits over the depending end of the shaft of the alignment device. This welding cylinder protrudes downwardly and around the control rod drive housing mating to the stub tube through which the control rod drive housing is inserted. A rotating raceway is provided interior of the cylinder for permitting TIG welding unit to traverse around a path for weldment defined at the side of the control rod drive housing and at the top of the stub tube.

    摘要翻译: 在其核心的燃料水核反应堆,燃料支撑铸造和被拆除的控制棒导向管暴露出核心板的装置和方法,用于在反应堆的底端处的淹没焊接维修和更换控制棒驱动器壳体的装置和方法 船舶被披露。 该装置注册到芯板中的一个孔及其相应的导销上。 设备轴的固定末端上的配合夹具精确地配合并配合到控制杆驱动器壳体的顶部。 对准装置包括用于浸没密封的交叉电子水平,其水平通过附接布线远程传递一方面控制杆驱动器壳体的顶部与另一方面在芯板中的相应和上覆孔之间的精确角度。 对于这里的焊接修补过程,焊接圆柱装置装配在对准装置的轴的悬垂端上。 该焊接圆筒向下突出并且围绕控制棒驱动器壳体突出,该壳体配合到插棒管,插入管驱动器壳体。 旋转的滚道设置在气缸的内部,用于允许TIG焊接单元围绕限定在控制棒驱动器壳体侧面和短管顶部的焊接路径。

    Control rod housing alignment
    3.
    发明授权
    Control rod housing alignment 失效
    控制杆外壳对齐

    公开(公告)号:US4954311A

    公开(公告)日:1990-09-04

    申请号:US295413

    申请日:1989-01-10

    IPC分类号: G21C19/20 G21C7/12 G21C19/02

    摘要: In a boiling water nuclear reactor having its core, fuel support casting, and control rod guide tubes removed to expose the core plate, an apparatus and method for the repair and replacement of the control rod drive housing at the bottom extremity of the reactor vessel is disclosed. The apparatus registers to a hole in the core plate and its corresponding guide pin. A mating fixture on the depending extremity of the shaft of the apparatus precisely fits and mates to the top of the control rod drive housing. The alignment device includes cross electronic levels sealed for submersion which levels remotely transfer through attached wiring the precise angularity between the top of the control rod drive housing on one hand and the corresponding and overlying hole in the core plate on the other hand.

    摘要翻译: 在其核心的燃烧水核反应堆,拆除燃料支撑铸造和控制棒导管以暴露芯板的情况下,用于在反应堆容器的底端修理和更换控制棒驱动器壳体的装置和方法是 披露 该装置注册到芯板中的一个孔及其相应的导销上。 设备轴的固定末端上的配合夹具精确地配合并配合到控制杆驱动器壳体的顶部。 对准装置包括用于浸没密封的交叉电子水平,其水平通过附接布线远程传递一方面控制杆驱动器壳体的顶部与另一方面在芯板中的相应和上覆孔之间的精确角度。

    Control rod housing alignment and repair method
    4.
    发明授权
    Control rod housing alignment and repair method 失效
    控制杆外壳对位和修理方法

    公开(公告)号:US5102614A

    公开(公告)日:1992-04-07

    申请号:US725703

    申请日:1991-07-03

    IPC分类号: G21C7/12 G21C19/02

    摘要: In a boiling water nuclear reactor having its core, fuel support casting, and control rod guide tubes removed to expose the core plate, a method for the submerged welding repair and replacement of the control rod drive housing at the bottom extremity of the reactor vessel is disclosed. An alignment device registers to a hole in the core plate and its corresponding guide pin. A control rod drive housing mating fixture on the depending extremity of the shaft of the alignment device precisely fits and mates to the top of the control rod drive housing. The alignment device includes cross electronic levels sealed for submersion which levels remotely transfer through attached wiring the precise angularity between the top of the control rod drive housing on one hand and the corresponding and overlying hole in the core plate on the other hand. For the welding repair process herein, a welding cylinder apparatus fits over the depending end of the shaft of the alignment device. This welding cylinder protrudes downwardly and around the control rod drive housing mating to the stub tube through which the control rod drive housing is inserted. In the embodiment here illustrated, a rotating raceway is provided interior of the chamber for permitting TIG welding unit to traverse around a path for weldment defined at the side of the control rod drive housing and at the top of the stub tube.

    摘要翻译: 在其核心的燃料水核反应堆,燃料支撑铸造和控制棒导管被移除以露出芯板的情况下,用于在反应堆容器的底端进行浸没式焊接修理和更换控制棒驱动器壳体的方法是 披露 对准装置对准芯板中的孔及其对应的引导销。 控制杆驱动器壳体配合夹具在对准装置的轴的悬垂末端精确配合并配合到控制杆驱动器壳体的顶部。 对准装置包括用于浸没密封的交叉电子水平,其水平通过附接布线远程传递一方面控制杆驱动器壳体的顶部与另一方面在芯板中的相应和上覆孔之间的精确角度。 对于这里的焊接修补过程,焊接圆柱装置装配在对准装置的轴的悬垂端上。 该焊接圆筒向下突出并且围绕控制棒驱动器壳体突出,该壳体配合到插棒管,插入管驱动器壳体。 在这里所示的实施例中,旋转滚道设置在腔室的内部,用于允许TIG焊接单元围绕限定在控制棒驱动器壳体侧面和短管顶部的焊接路径。

    Control rod housing alignment apparatus
    5.
    发明授权
    Control rod housing alignment apparatus 失效
    控制杆外壳定位装置

    公开(公告)号:US5001840A

    公开(公告)日:1991-03-26

    申请号:US526880

    申请日:1990-05-22

    IPC分类号: G21C7/12 G21C19/02

    摘要: In a boiling water nuclear reactor having its core, fuel support casting, and control rod guide tubes removed to expose the core plate, an apparatus for the repair and replacement of the control rod drive housing at the bottom extremity of the reactor vessel is disclosed. The apparatus registers to a hole in the core plate and its corresponding guide pin. A mating fixture on the depending extremity of the shaft of the apparatus precisely fits and mates to the top of the control rod drive housing. The alignment device includes cross electronic levels sealed for submersion which levels remotely transfer through attached wiring the precise angularity between the top of the control rod drive housing on one hand and the corresponding and overlying hole in the core plate on the other hand.

    摘要翻译: 本发明公开了一种沸腾水核反应堆,其核心是燃料支撑铸造和控制棒引导管,以拆除核心板,用于在反应堆底部的末端修理和更换控制棒驱动器壳体的装置。 该装置注册到芯板中的一个孔及其相应的导销上。 设备轴的固定末端上的配合夹具精确地配合并配合到控制杆驱动器壳体的顶部。 对准装置包括用于浸没密封的交叉电子水平,其水平通过附接布线远程传递一方面控制杆驱动器壳体的顶部与另一方面在芯板中的相应和上覆孔之间的精确角度。

    Measuring fixture
    6.
    发明授权
    Measuring fixture 失效
    测量夹具

    公开(公告)号:US4274205A

    公开(公告)日:1981-06-23

    申请号:US32112

    申请日:1979-04-23

    摘要: An accurately formed straight edge member serves as a track for a carriage movable along the length of an elongated component. Distance measuring devices supported by the carriage engage the adjacent surface of the component by which flatness, bow and twist of the component can be determined.

    摘要翻译: 准确形成的直边部件用作可沿细长部件的长度移动的支架的轨道。 由支架支撑的距离测量装置接合部件的相邻表面,由此可以确定部件的平直度,弓形和扭曲。

    Locked-wrap fuel rod
    8.
    发明授权
    Locked-wrap fuel rod 失效
    锁紧式燃料棒

    公开(公告)号:US4005521A

    公开(公告)日:1977-02-01

    申请号:US587800

    申请日:1975-06-17

    摘要: A method for spacing fast reactor fuel rods using a wire wrapper improved by orienting the wire-wrapped fuel rods in a unique manner which introduces desirable performance characteristics not attainable by previous wire-wrapped designs. Use of this method in a liquid metal fast breeder reactor results in: (a) improved mechanical performance, (b) improved rod-to-rod contact, (c) reduced steel volume, and (d) improved thermal-hydraulic performance. The method produces a "locked wrap" design which tends to lock the rods together at each of the wire cluster locations.

    摘要翻译: 使用包线器间隔快堆反应堆燃料棒的方法通过以独特的方式定向绕线的燃料棒而改进,其引入了先前的线包装设计所不能达到的期望的性能特征。 在液态金属快速增殖反应器中使用这种方法导致:(a)改进的机械性能,(b)改善棒 - 杆接触,(c)减少钢体积,和(d)提高热液压性能。 该方法产生“锁定的包装”设计,其倾向于将杆在每个线簇位置处锁定在一起。